Scooter



Feb. 10

SCOOTER Filed Sept.

14, 1929 2 Sheets-Sheet l 1S 14 19 zo i INVENIOR' f PM ATTORNEY.

Feb. 10, 1931. F. H. sn-:FKEN 1,792,045

SCOOTER Filed sept. 14. 1929 2 sheets-sheet 2 1 N VEN TOR.

ZbW/f fia/15%@ Z ATTORNEY.

Patented Feb. Y1o, '1931" Umane-MES OFFICE? FRANK H. `sriirm'nx,orMILWAUKina' WIscoNsIN'. Y y

SCOOTER i to improvementsl in erand all its parts and combinations as set.

Y forth in the claims, ndgap equmlel-,ts thereof. Y "i y.: i

In the accompanying drawings in-'which the same :reference numerals designate' the same parts in all of the v'iewsf4 Y Fig.V 1 is a side elevational view; Fig. 2 isa lplan view; V`

Fig. 3-is an enlarged detailview showing the driving connections, parts being broken away; f 1 f. f f l l Fig. 4 isa sectional view taken on Vline 4 4 of.Fig.3;

Fig.'5 is 'a sectional viewtaken on line 5-5 of Fig.4; V l i' Fig. V6 is a sectional view taken on line se Gf-Gof Fg; n .l f I f Fig. 7 is a viewsimilar to Fig. 3 showing a modified form ofdriving means; Fig. 8 is a view showing the rear wheel of the modified form illustratedin Fig. 7, the

y elongated platform 17.

A front steering 'post18is mounted in the bearing'14. Said post is formed with a forked lower portion 19 within which a front wheel 2O is rotatably carried, and with an upper handle bar 21.l

axle has squared end `within square openings ofthe framememlbers to preventrotati'onof the axle in the to the rear sprocket teeth 27 cover of the sprocket wheel housing being'V f i A short axle 22- is mounted within-the forked rear framer portion 15. TheV said `rear portions 22 which fit frame.V A'r'ear wheel 23islo`o`sely mounted on said axle and said rear wheel is provided vwith -a hub portion 24VA to" which la ratchet wheel 25 is rigidly-secured (see Fig. 4).

A circular'hou'sing 26 isloosely mounted onf the hub'24" and is rotatable therearound.

The saidhousingis formed onits outer periphery with 4sprocket teeth 27. Within the housing are dogs 28 which engage the ratchet wheelj25. Springs 29 each have oneend Secured to the side of the housing and have the other end engagingithe adjacent dog to hold thelatterl in engaging position. v-

vOn an intermediate portion of the platform y 17 and at one'rside thereof` a bearing bracket "f 30 is mounted.v` ,2A pin 31 is journaled in said bearing and looselyj mounted on the 'outer endfthereofis a sprocketwhee1-32. The infner side of said sprocket Vwheel is'formed with a groove33. A lug 34 whichV extends outwardlyfrom theside of theframe engages said groove. VA coiledspring 35 has one end secured to the .Sprocket wheel as at 36'andhasits other end secured to the bear- Y ing 30. A pedal 38 is pivoted to an eccentric portion of .the outer side* of the sprocket wheel.l Thesprocketwheel 32 is connected by means of an endless chain 39. n Y In operation of,` the principal form, a child places one foot upon the platform 17 land the other foot'on thepedal 38. Upon pushingl downwardly, the sprocket wheel 32 is rotated, and through the endless chain 39 the rear housing26 is rotated. Through the dogs 28 which engage theratchet wheel, 25 motionis transmitted to the rear wheel 23. The pedal 38 may be pushed downwardly until the lug 34 engagesrthe upper end of the groove 33. vAt this point pressure of the foot is released and the spring, which has been wound up upon downward movement of the pedal, will now return the sprocket wheel 32 to its original position. This will have no effect upon the rear wheel of the scooter as t-he dogs 28 will merely slip over the'teeth of the ratchet wheel without causing rotation thereof. The pedal may then be pushed downwardly again to continue the forward movement of the vehicle.-

In Fig. 7 a modification is shown which is quite similar to the principal form. In this modification, however, instead of the chain 39 a belt 39 is employed, the said belt having one end secured to the front wheel as at 40 and having its other end wound around the housing 26 and secured thereto as at Il, the said housing thereby serving as a drum. Within the housing, in addition to the ratchet and dogs 28, there is a coiled spring 35 which has one end secured to the aXle and its other end to the housing. The operation of this modified form is similar to that of the principal form except that pressure upon the pedal causes unwinding oftae belt 39. Then the pressure of the foot upon the pedalis released the coiled spring will cause the drum 26 to return to its original position and to wind the belt thereon ready for another downward stroke upon the' pedal. It is to be noted that in this form, asL the belt unwinds from the rear drum the circumference of the drum plus the belt wound thereon decreases, giving a greatergear ratio and thereby increasing the speed.

In the modification disclosed in Fig. 9 the construction is indentical with the principal form except that there is no spring in connection with either the front sprocket wheel or the rear sprocket wheel'. Instead, a toe clip 4t2 has been provided and in operation, inasmuch as there is no spring, it is neces'- sa'ry to pull upwardly as well as to push downwardly.

It is to be understood that the term belt as used in the claims covers either a chain belt as shown in the principalform or the ordinary type of belt as shown in one of the modifications.

From the foregoing description it may be seen that the improved scooter is simple in operation and w ell adapted for the purpose described.

What I claim is:

l. A scooter comprising a frame, front and rear wheels rotatably carried by said frame, anl operating wheel rotatably mounted on said frame, a pedal for rotating Asaid operating wheel, a. rotatable drum adjacent said rear wheel, belt means having` one end rigidly connected to said operating wheel and having its other end rigidly connected with said drum and windable thereon in several strata, and means between said drum and said rear wheel for rotating the latter only when said drum is rotated in a forward vdirection by the operating wheel, the speed of the rear wheel increasing as the strata of the belt are unwound from the drum.

2. A scooter comprising a frame, front and rear wheels rotatably carried by said frame, an operating wheel rotatably mounted on said frame and adapted to be reciprocally moved during operation of the device, a rotatable drum adjacent said rear wheel, endless belt means connecting said operating wheel with said drum, means between said drum and said rear wheel for rotating the latter only when said drum is rotated in a forward direction by the operating wheel, and a pedal in connection with said operating wheel having means for engagement both above and below the toe of the user to provide for foot operation of the operating wheel in two directions.

- 3. A scooter comprising a frame, front and rear wheels rotatably carried by said frame, anoperating Ywheel rotatably mounted on said frame and adapted to be reciprocally moved during operation of the device, said operating wheel having an arcuate groove less than a semi-circle in length on one side thereof, a rotatable drum adjacent said rear wheel, belt means connecting said operating wheel with said drum, means between said drum and said rear wheel for rotating the latter only when said drum is rotated in a forward direction by the operating wheel, and a lug projecting from the frame and engageable with the groove in the operating wheel for limiting the movement of the latter.

Ll. Ascooter comprising a frame, front and rear wheels rotatably carried by said frame, an operating wheel rotatably mounted on said frame and adapted to be reciprocally moved during operation of the device, said operating wheel having an arcuate groove on one side thereof, a rotatable drum adjacent said rear wheel, belt means connecting said operating wheel with said drum, means between said drum and said rear wheel for rotating the latter only when said drum is rotated in a forward direction by the operating wheel, and a lug projecting from the frame and engageable with the groove in the operating wheel forlimiting the movement of the latter.

In testimony whereof I affix my signature.

FRANK H. SIEFKEY. 

